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arm64: dts: mediatek: mt8195-cherry: add WiFi PCIe and BT USB power supplies

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The MT8195 Cherry design features an M.2 E-key slot wired up with PCIe
and USB for a WiFi+BT adapter. Previously the power was just enabled
all the time with a default pinctrl setting that set the GPIO pin high.

With the PCIe slot description DT binding in place, the power supplies
can at least be added and tied to the PCIe and USB hosts. Once the
M.2 E-key binding is merged, this description can be further converted
to an M.2 E-key.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Chen-Yu Tsai 2026-03-02 13:31:06 +08:00 committed by AngeloGioacchino Del Regno
parent e4e6f0c5a4
commit 0c5d91b3d0
No known key found for this signature in database
GPG Key ID: 9A3604CFAD978478
1 changed files with 36 additions and 11 deletions
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47
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
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@ -83,6 +83,17 @@ pp3300_s3: regulator-pp3300-s3 {
vin-supply = <&pp3300_z2>;
};
pp3300_wlan: regulator-pp3300-wlan {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pp3300_wlan_en_pin>;
regulator-name = "pp3300_wlan";
/* load switch */
enable-active-high;
gpio = <&pio 58 GPIO_ACTIVE_HIGH>;
vin-supply = <&pp3300_z2>;
};
/* system wide 3.3V power rail */
pp3300_z2: regulator-pp3300-z2 {
compatible = "regulator-fixed";
@ -760,10 +771,25 @@ &ovl0_in {
};
&pcie1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pcie1_pins_default>;
status = "okay";
pcie@0 {
compatible = "pciclass,0604";
reg = <0 0 0 0 0>;
device_type = "pci";
num-lanes = <1>;
vpcie3v3-supply = <&pp3300_wlan>;
#address-cells = <3>;
#size-cells = <2>;
ranges;
wifi@0 {
reg = <0 0 0 0 0>;
wakeup-source;
};
};
};
&pio {
@ -1179,12 +1205,6 @@ pins-vreg-en {
};
pio_default: pio-default-pins {
pins-wifi-enable {
pinmux = <PINMUX_GPIO58__FUNC_GPIO58>;
output-high;
drive-strength = <14>;
};
pins-low-power-pd {
pinmux = <PINMUX_GPIO25__FUNC_GPIO25>,
<PINMUX_GPIO26__FUNC_GPIO26>,
@ -1222,6 +1242,12 @@ pins-low-power-pupd {
};
};
pp3300_wlan_en_pin: pp3300-wlan-en-pins {
pins-en {
pinmux = <PINMUX_GPIO58__FUNC_GPIO58>;
};
};
rt1019p_pins_default: rt1019p-default-pins {
pins-amp-sdb {
pinmux = <PINMUX_GPIO100__FUNC_GPIO100>;
@ -1570,11 +1596,10 @@ &xhci2 {
};
&xhci3 {
status = "okay";
/* MT7921's USB Bluetooth has issues with USB2 LPM */
usb2-lpm-disable;
vbus-supply = <&usb_vbus>;
vbus-supply = <&pp3300_wlan>;
status = "okay";
};
#include <arm/cros-ec-keyboard.dtsi>